The Seac T-Sun long sleeved rash guard T-shirt fully protects the torso and arms from abrasion caused by equipment rubbing, rocky seabeds or contact with jellyfish and other stinging creatures.The fabric offers protection from the harmful UV rays of the sun, thanks to the UPF 50+ protection factor.The Seac T-Sun rashguard adheres to the torso like a second skin, avoiding annoying air pockets and folds of fabric. The flat seams avoid any rubbing.